package main
import "fmt"
func main(){

	nums := []int{2,3,4}
	sum := 0
	for _,num := range nums {
		sum+=num
	}
	fmt.Println("sum",sum)
	
	for i,num := range nums {
	//	if num == 3 {
			fmt.Println(i,num)
	//	}
	}
	
	kvs := map[string]string{"a":"apple","b":"banana"}
	for k,v := range kvs {
		fmt.Printf("%s -> %s\n",k,v)
	}
	
	for i,c := range "go"{
	
		fmt.Println(i,c)
	
	}
}	